org.apache.drill.exec.record.metadata

Class TupleBuilder

java.lang.Object

org.apache.drill.exec.record.metadata.TupleBuilder

public class TupleBuilder
extends Object

Internal tuple builder shared by the schema and map builders. Those two classes can't inherit from this class because their versions of the "add" methods return themselves to allow fluent construction.

Constructor Summary

Constructors

Constructor and Description
TupleBuilder()

Method Summary

Modifier and Type	Method and Description
void	add(MaterializedField col)
void	add(String name, TypeProtos.MajorType type)
void	add(String name, TypeProtos.MinorType type)
void	add(String name, TypeProtos.MinorType type, int width)
void	add(String name, TypeProtos.MinorType type, TypeProtos.DataMode mode)
void	addArray(String name, TypeProtos.MinorType type)
void	addArray(String name, TypeProtos.MinorType type, int dims) Add a multi-dimensional array, implemented as a repeated vector along with 0 or more repeated list vectors.
void	addColumn(ColumnMetadata column)
void	addDecimal(String name, TypeProtos.MinorType type, TypeProtos.DataMode mode, int precision, int scale)
DictBuilder	addDict(org.apache.drill.exec.record.metadata.SchemaContainer parent, String name)
DictBuilder	addDictArray(org.apache.drill.exec.record.metadata.SchemaContainer parent, String name)
UnionBuilder	addList(org.apache.drill.exec.record.metadata.SchemaContainer parent, String name)
MapBuilder	addMap(org.apache.drill.exec.record.metadata.SchemaContainer parent, String name) Add a map column.
MapBuilder	addMapArray(org.apache.drill.exec.record.metadata.SchemaContainer parent, String name)
void	addNullable(String name, TypeProtos.MinorType type)
void	addNullable(String name, TypeProtos.MinorType type, int width)
RepeatedListBuilder	addRepeatedList(org.apache.drill.exec.record.metadata.SchemaContainer parent, String name)
UnionBuilder	addUnion(org.apache.drill.exec.record.metadata.SchemaContainer parent, String name)
TupleSchema	schema()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TupleBuilder

public TupleBuilder()

Method Detail

addColumn

public void addColumn(ColumnMetadata column)

add

public void add(String name,
                TypeProtos.MajorType type)

add

public void add(MaterializedField col)

add

public void add(String name,
                TypeProtos.MinorType type,
                TypeProtos.DataMode mode)

add

public void add(String name,
                TypeProtos.MinorType type)

add

public void add(String name,
                TypeProtos.MinorType type,
                int width)

addNullable

public void addNullable(String name,
                        TypeProtos.MinorType type)

addNullable

public void addNullable(String name,
                        TypeProtos.MinorType type,
                        int width)

addArray

public void addArray(String name,
                     TypeProtos.MinorType type)

addDecimal

public void addDecimal(String name,
                       TypeProtos.MinorType type,
                       TypeProtos.DataMode mode,
                       int precision,
                       int scale)

addArray

public void addArray(String name,
                     TypeProtos.MinorType type,
                     int dims)

Add a multi-dimensional array, implemented as a repeated vector along with 0 or more repeated list vectors.

Parameters:

name - column name

type - base data type

dims - number of dimensions, 1 or more

addMap

public MapBuilder addMap(org.apache.drill.exec.record.metadata.SchemaContainer parent,
                         String name)

Add a map column. The returned schema builder is for the nested map. Building that map, using MapBuilder.resumeSchema(), will return the original schema builder.

Parameters:

parent - schema container

name - the name of the map column

Returns:

a builder for the map

addMapArray

public MapBuilder addMapArray(org.apache.drill.exec.record.metadata.SchemaContainer parent,
                              String name)

addDict

public DictBuilder addDict(org.apache.drill.exec.record.metadata.SchemaContainer parent,
                           String name)

addDictArray

public DictBuilder addDictArray(org.apache.drill.exec.record.metadata.SchemaContainer parent,
                                String name)

addUnion

public UnionBuilder addUnion(org.apache.drill.exec.record.metadata.SchemaContainer parent,
                             String name)

addList

public UnionBuilder addList(org.apache.drill.exec.record.metadata.SchemaContainer parent,
                            String name)

addRepeatedList

public RepeatedListBuilder addRepeatedList(org.apache.drill.exec.record.metadata.SchemaContainer parent,
                                           String name)

schema

public TupleSchema schema()